Ripple marks in submerged sediments of the river Rhine, Switzerland.

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Photo credit: © DR JUERG ALEAN/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
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Keywords: bed, deposits, earth, environment, europe, geography, geology, mineral, natural, nature, pattern, patterned, physical, rhine, rippled, rippled-marks, ripples, river, sand, science, sediments, stone, submerged, surface, swiss, switzerland, type